BA317E, BA318E and BA317E-SS Tachometers, Intrinsically safe

Features:

Intrinsic safety certification
Proximity detector, magnetic pick-off, voltage pulse, or switch contact input.
Separate speed and run-time displays
Rugged Stainless Steel model for use in Ex e, Ex n, Ex p and Ex t panel enclosures in Zones 1, 2, 21 & 22.
BA318E has isolated synchronous pulse output as standard
Optional:
Internally powered display backlight
Isolated Alarms
Isolated 4/20mA output
BA317E and BA317E-SS isolated synchronous pulse output.

Product downloads

96 x 48mm Product dimensions

105 x 60mm Product dimensions

144 x 72mm Product dimensions

New application guide

Product details
These easy to use, intrinsically safe tachometers can display speed in engineering units from a wide variety of pulse output sensors such as a proximity detector or switch contact. To simplify maintenance, the instruments also contain a second display which can simultaneously show the run-time of the monitored machinery. International certification allows worldwide installation.

Accessories, include a display backlight, isolated dual alarms, isolated 4/20mA output for BA317E and BA317E-SS and isolated synchronous pulse output.

Tachometers can be supplied configured and fitted with a customer specified printed scale card showing the units of measurement for no additional charge. Specified tag or application information can also be printed onto the rear of the instrument.

Other tachometers in our range include:

To select the model and options for your application please refer to the following table.

To select the model for your application please refer to the following table.

Model	BA317E	BA318E	BA317E-SS
		#	#
Mounting & Enclosure	Panel 96 x 48 mm	Panel 144 x 72 mm	Rugged panel 105 x 60 mm
Case material	Noryl		316 Stainless Steel
Protection	Front IP66, rear IP20
Display	Speed: 8 digits 9mm high Run-time: 6 digits 6mm high	Speed: 8 digits 18mm high Run-time: 6 digits 12mm high	Speed: 8 digits 9mm high Run-time: 6 digits 6mm high
Certification
International IECEx	Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C		Ex ia IIC T5 Ga Ex ia IIIC T80°C Db -40°C ≤ Ta ≤ +60°C
Europe ATEX	Group II Category 1G Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C		Group II Category 1G and 2D Ex ia IIC T5 Ga Ex ia IIIC T80°C Db -40°C ≤ Ta ≤ +60°C
UK UKEX	Group II Category 1G Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C		Group II Category 1G and 2D Ex ia IIC T5 Ga Ex ia IIIC T80°C Db -40°C ≤ Ta ≤ +60°C
USA & Canada ETL & cETL Intrinsic safety	Class I Div 1 Gp A, B, C, D T5 (USA & Canada) Class II Div 1 Gp E, F, G. Class III Div 1 (USA & Canada) Class I Zone 0 AEx ia IIC T5 Ga (USA) Ex ia IIC T5 Ga (Canada) -40°C ≤ Ta ≤ 70°C
USA & Canada ETL & cETL Intrinsic safety			Zone 20 AEx ia IIIC T80°C Da (USA) Ex ia IIIC T80°C Da (Canada) -40°C ≤ Ta ≤ 60°C May be installed in an AEx e, AEx p, AEx n or AEx t panel enclosure without invalidating enclosure certification.
USA & Canada ETL & cETL Nonincendive	Class I Div 2 Gp A, B, C, D T5 (USA & Canada) Class II Div 2 Gp F, G. Class III Div 2 (USA & Canada) -40°C ≤ Ta ≤ 70°C
China CCC Ex	Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C		Ex ia IIC T5 Ga Ex ia IIIC T80°C Db -40°C ≤ Ta ≤ +60°C
India CCOE/PESO	Ex ia IIC T5 Ga -40°C ≤ Ta ≤ +70°C		Ex ia IIC T5 Ga Ex ia IIIC T80°C Db -40°C ≤ Ta ≤ +60°C
Optional
Backlight	Yes
Alarms	Yes*	Yes	Yes*
4/20mA output	Yes*	Yes	Yes*
Pulse output	Yes*	Standard	Yes*